Cable-drying apparatus.



PATENTE'D DEC. 25, 1906.

PASSBURG. GA-BLE DRYING APPARATUS.-

APPLICATION FILED FEB. 10, 1906! W! in egses:

A424 MW EMIL PASSBURG, F BERLIN, GERMANY. CABLE-DRYINGW APPA ATU Specification of Letters Patent.

Patented Dec. 25, 1906.

Application filed February 1906. Serial No. 300,384.

To all whom it may concern:

Be it known that I, EMIL Passsnno, engiuser, of 33 Briickenallee, Berlin, in the Emratus.

out assing through stuffing-boxes, g ands, or.

pire of Germany, have invented certain new and useful Improvements in Cable-Drying Apparatus, of which the following is a full specification.

. The subject-matter of the invention is an apparatus or device for drying cables under a vacuum, in which the cable while shut off from the air is continuously drawn througha vacuum-qpipe, which serves as a drying appahe'cable also leaves the pi c withthe ike, which in consequence of their being tightly closed round the sheath of the cable might easily damage the same, particularly if the cable be provided with a paper sheath. The end of the vacuum drying-pipe through Which the cable enters has an air-tight connection with a chamber which after the cable Wound upon a rotary drum has been introduced thereinto is exhausted simultaneously with the drying-pipe; The exit end otthe vacuum drying-pipe dips into an impregnating liquid contained in an open vessel, which liquid when the vacuum drying-pipe has been exhausted is sucked up into the tube to a height corresponding, approximately, to the height of the barometer, so that air is pre vented from entering the drying-pipasaid liquid thereby serving as a stufiing-box through which the cable passes.

In the accompanying drawings, Figure 1 is a section through the whole drying apparatus, while Fig. 2 is a cross-section through the vacuum drying-pipe on the line A A ol Fig. 1.

A chamber a is provided, which is preferably cylindrical in shape, into which vessel the cable a, wound upon a drum 6, is placed,

the drum with the cable thereupon being inserted from above through an opening adapted to be hermetically closed by'a cover or door. The drum 5 is adapted to rotate directly in the vessel a or in bearings supported by a frame arranged on a trolley or llKQ can riage.

The vessel 0 itself may be fitted with heating devices (1 for the purpose of heating and partially drying the cable. The vacuum dry ing apparatus is connected in an air-tight manner with the vessel a, said. vacuum d ry ing apparatus consisting oione or more pipes e of comparatively small diameter which have air-tight connection and cross connection with each other, said pipes being surrounded by a ja'cketfif, which is heated by any suitable means. T e heat from this jacket is radiated upon the cable, Which, as it moves forward, is preferably supported on rollersg, as indicated by the arrows in Fig. 2, the entire surface of the cable as it passes through the drying-pipe being thus subjecteo to a uni form degree of heat. As a result the water contained in the sheath of the cable is quickly converted into steam under the joint action of the heat and the vacuum which prevails in the heating-pipe e. This steam is afterward condensed to water in a condenser is of suitable construction. pipes lead to the air-pum or to the condenser. The pipe e and its jac et f may be either straight, as shown in the drawings, or it may be arranged in-a coil if circumstances renderv that construction expedient. The exit end it of the pipe where the cable leaves'the same From the pipe e suitable dips into the impregnating liquid Z, which is? contained in the open vessel 'i.

' When a vacuum is created in the pipe e, the suction will cause theliquid l to, rise therein to its barometric height, which of course will vary as diil'erent liquids are used from time to time, and accordingly the li uid which rises in the pipe prevents the a mission of air thereinto, serving likewise as a stuffin -box through which the cable may pass. The cable is wound upon a drum n, which rotates within the vcsscl 'i and is thereby continuously drawn through pipe 6 and unwound from drum 1). Suitable heatcrs m, placed in the vessel i, keep the liquid Z raised to the temperature at which it most readily imprcgnates the pores of the cablcsheath.

Having thus described my said invention, what I claim, and desire to secure by Letters Patent, is--- 1. In a device of the character described, the combination of a pipe, means for ex l'iausting and niicans for heating the same, a cabledioldiug chamber having an air-tight connection with one end of said pipe, and a vessel into which the other end of said pipe dips. 2. In a device of the character described, the combination oi a plurality of pipes, mcans for exhausting and means for heat .ing the same, a cubic-holding chamber liav nag an aintight connection with one end of said pipes, and an open vessel adapted to hold an impregnating liquid into which the other ends of said pipes dip.

3. In a device of the character described, the combination of a pipe, means for exhausting the same, one end of said pipe having an air-tight closure, an impregnating liquid rising in the other end of said pipe, and means for drawing a cable through said pipe andsaid li( uid.

4. In a evice of the character described, the combination of a pipe, a chamber in connection therewith, means for exhausting said end of sai pipe and said chamber, an impregnating liquid being drawn by suction into said pipe, and means ,for causing a cable to pass from lsaid chamber and through said pipe and said i uid.

5. In a device of the character described, the combination of a dryingpipe, means for exhausting the same, an impregnating liquid being drawn into said pipe when exhausted, and means for causing a cable to pass continuously through said drying-pipe and through said liquid.

6. In a device of the character described, the combination ofa drying-pipe, means for exhausting the same, a condenser connected with said pi e, an impregnating liquid in one pipe preventing access of air thereinto, and means for causing a cable to pass throu h said pipe and said liquid.

7. In a device of the character described, the combination of a pipe, means for drying a cable in said pipe, meansfor removing the steam therefrom, and means for passing the dried. cable through animpregnating liquid as said cable leaves said pipe.

8. In a device of the character described, the combination of a pipe,.an air-tight chamber in connecticin with one end thereof, a cable passing from said chamber and through said pipe, means for exhausting said pipe and said chamber, and means for preventing access of air through the other end of said pipe, said means serving, also, to impregnate said cable.

9. In a device of the character described, the combination of a pipe, 11188118fOlllOlll'lBlw ically sealing one end thereof, means for exhausting the pipe, and means indepcn den t of said pipe for preventing access of air through the other end thereof, said means servin also, to impregnate the cable passing through said pipe.

10. In a device of the character described, the combination of a )ipe, drying means, exhausting means, and impregnating means, and means for causing a cable in said pipe to be successively dried and impregnated.

11. In a device of the character described, the combination of a pipe, means for exhaust ing and means for heating the same, a cableholding chamber having an air-tight connection with one end of said pipe, and an 0 en vessel adapted to hold an impregnating iquid into which the other end. of said ipe dips.

12. In a device of the character escribed, the combination of a pipe, means for exhausting and means for heating the same, one end of said pipe having an air-tight closure, a liquid rising in the other end of said pipe, and means for drawing a cable through said pipe and said liquid.

In testimony whereof I affix my signature in presence of two witnesses.

EMIL PASSBURG.

Witnesses:

WOLDEMAR HAUPT, HENRY HAsrEn. 

